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ESR70 Atlas ESR+ Capacitance and ESR Meter

0.15 LBS
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Product Description

The Peak Atlas ESR70 is a portable capacitance and ESR meter.


It's designed with the real world in mind. The Atlas ESR is the only instrument that automatically detects charged capacitors and then performs a controlled discharge process before measuring the capacitance and ESR.

Measuring a capacitor's ESR (equivalent series resistance) is a great indicator of capacitor condition. This portable unit offers instant results, just connect the probes and press test. Innovative audible alerts give you an instant feedback of the measurement results with further detail shown on the screen.

And the tones themselves are surprising pleasant, including “Bell-like” pings (a couple of different types for ESR that is below certain values), and also a “Beep-Barp” type tone for ESR that is likely to be too high. There is also a reassuring “Blip” when the measurement has started and completed.

You can even use directly in-circuit, saving you the trouble of removing capacitors. When testing capacitors out-of circuit, the unit will also display the capacitance.


  • Measure capacitance and ESR. 
  • Automatic analysis start when applying probes to capacitor.
  • New enhanced dynamic range of 0.00 to 40.0 ohms.
  • Audible alerts for various ESR levels.
  • ESR Resolution as fine as 0.01 ohms.
  • Supports capacitors from 1uF to 22,000uF. 
  • Capable of In-Circuit measurement of ESR. 
  • Polarity free, connect any way round. 
  • Protected against highly charged capacitors.
  • Great for low DC resistance checking too (such as PCB short checking).
  • Supplied complete with 2mm male test leads and 2mm compatible gold plated crocs.
  • Test leads are ultra-durable and 45cm (18") long with 2mm plugs.
  • Enhanced software compensation of cable resistance.
  • Complete with comprehensive user guide.
  • Capacitor reference table included.
  • Tests at the industry standard 100kHz. 
  • Long life alkaline battery fitted.
  • Just 100mm x 70mm x 20mm
  • Now includes the new gold plated 2mm plugs and sockets allowing use of different probe types.
  • Supplied with gold plated crocs as standard, others available as an option. Cable length 450mm (18").
 Parameters Minimum    Typical    Maximum   Notes
 Peak test current into S/C   ±20mA ±22mA  
 Peak test voltage, full scale ESR   ±40mA ±44mA  
 Peak test voltage across O/C   ±2.5V ±3.0V  
 Capacitance measurement range 1µF   22,000µF  
 Capacitance accuracy ±4%±0.2µF      
 ESR measurement range   40Ω 2
 ESR resolution for ESR < 2Ω 0.01Ω   0.02Ω  
 ESR resolution for ESR > 2Ω ±1.5%±0.022Ω      
 ESR accuracy for ESR > 2Ω ±1.5%±0.2Ω      
 Abuse voltage (for C < 10µF)     ±275V 3
 Abuse voltage (for C > 10µF)     ±50V 3
 Auto-Discharge voltage limit     ±50V  
 Battery type MN21/GP23A 12V Alkaline      
 Battery voltage range 8.5V 12V    
 Battery voltage threshold   8.5V    
 Inactivity power-down period 30 seconds      
 Dimensions (excluding test leads) 103 x 70 x 20mm      
 Operating temperature range 10°C   40°C 1
  1. 1. Subject to acceptable LCD visibility.
  2. 2. Subject to revision.
  3. 3. Maximum abuse voltage is limit of protection electronics. Probes, leads and unit are not certified for high voltage use.

User Guide for ESR70

Guide D'Utilisation pour ESR70

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